文章标题

检测树莓派温度
树莓派内部有温度传感器，所以只需要调用传感器来实现。
检测树莓派温度代码部分：

import requests  import json  import time  while 1:    try:      file = open("/sys/class/thermal/thermal_zone0/temp")      temp = float(file.read()) / 1000      file.close()      #print "response status: %d" %r.status_code      with open("cpu_result.txt","a") as f:        strTime = time.strftime('%Y-%m-%d:%H-%M-%S',time.localtime(time.time()))        f.write(strTime + " %.1f" %temp + " %d" %r.status_code + "\n")      time.sleep(5*60)    except Exception,e:      with open("cpu_result.txt","a") as f:        f.write("error!\n")  

实现后，检测到的温度无法实时查看，需要物联网控制平台yeelink来查看。
综合实现代码如下：

#!/usr/bin/env python  # -*- coding: utf-8 -*-  import requests  import json  import time  while 1:    try:      file = open("/sys/class/thermal/thermal_zone0/temp")      temp = float(file.read()) / 1000      file.close()      # 设备URI      apiurl = 'http://api.yeelink.net/v1.1/device//sensor/406330/datapoints'      apiheaders = {'U-ApiKey': 'f0f605d2d279ba74edaf0b7a5', 'content-type': 'application/json'}      # 字典类型数据，在post过程中被json.dumps转换为JSON格式字符串 {"value": 48.123}      payload = {'value': temp}      r = requests.post(apiurl, headers=apiheaders, data=json.dumps(payload))      #print "response status: %d" %r.status_code      with open("cpu_result.txt","a") as f:        strTime = time.strftime('%Y-%m-%d:%H-%M-%S',time.localtime(time.time()))        f.write(strTime + " %.1f" %temp + " %d" %r.status_code + "\n")      time.sleep(5*60)    except Exception,e:      with open("cpu_result.txt","a") as f:        f.write("error!\n")  

上传成功后，既可以在物联网平台查看。